Dell P2815Q Dell User Guide - Page 43
Monitor Control Command Set at DP 1.2. In these cases
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DisplayPort 1.2 Press the key to enable or disable DisplayPort 1.2. To use the DP MST (Daisy Chain) feature, enable DP 1.2. NOTE: Ensure your graphics card can support these features before selecting DP 1.2. Wrong setting may result in blank screen. Some graphics card do not support MCCS (Monitor Control Command Set) at DP 1.2. In these cases, DDM (Dell Display Manager) may not run. DisplayPort 1.2 is disabled when input source is HDMI. Reset Display Settings Energy Settings Select this option to restore default display settings. Power Button Allows you to set the power LED indicator on or off to save LED energy. USB By turning on or off to control USB power supply while monitor under standby mode but without USB upstream cable . Reset Energy Select this option to restore default Energy Settings. Settings Operating the Monitor 43